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首页> 外文期刊>Meat Science >Effect of vitamin E supplementation and diet on fatty acid composition and on meat colour and lipid oxidation of lamb leg steaks displayed in modified atmosphere packs
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Effect of vitamin E supplementation and diet on fatty acid composition and on meat colour and lipid oxidation of lamb leg steaks displayed in modified atmosphere packs

机译:补充维生素E和饮食对改良气氛包装中展示的羊腿牛排脂肪酸组成,肉色和脂质氧化的影响

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摘要

Groups of 8 lambs were allocated to one of five concentrate diets supplemented with all-rac-α-tocopheryl acetate containing 30 (C30), 60 (C60), 120 (C120), 250 (C250) and 500 (C500) mg/kg dry matter. Two other groups were fed grass silage and 400 g/day concentrate with 60 (S60) or 500 (S500) mg ot-tocopheryl acetate/kg dry matter. Within diet, vitamin E level did not affect growth performance or carcass characteristics. Basal diet did not affect final live weight, conformation and fatness scores. M. semimembranosus from S lambs contained more a-tocopherol than that of C lambs on the same intake and by day 6 in MAP (75% O2/25%CO2) chroma and a* were below acceptable levels in C30 lambs. TBARS were higher in C30 and C60 muscle than in other treatments (P< 0.001) after 3 and 6 days display. Muscle fatty acid composition varied with basal diet but lipid oxidation depended more on vitamin E concentration with an initial concentration of 1.9 μg/g muscle preventing significant lipid oxidation.
机译:每组8只羔羊被分配到五种浓缩饲料中,其中一种分别添加了30(C30),60(C60),120(C120),250(C250)和500(C500)mg / kg的全外消旋α-生育酚乙酸酯干物质。给另外两组喂草青贮饲料和400 g /天的浓缩液,其中含有60(S60)或500(S500)mg乙酸生育酚乙酸酯/ kg干物质。在饮食中,维生素E水平不会影响生长性能或car体特征。基础饮食不影响最终的活体重,构象和脂肪评分。在相同摄入量下,来自S羔羊的半膜分支杆菌比α羔羊的α-生育酚含量更高,到第6天,MAP(75%O2 / 25%CO2)色度和a *低于C30羔羊的可接受水平。在显示3天和6天后,C30和C60肌肉中的TBARS高于其他治疗(P <0.001)。肌肉脂肪酸组成随基础饮食而变化,但脂质氧化更多地依赖于维生素E浓度,初始浓度为1.9μg/ g肌肉可防止明显的脂质氧化。

著录项

  • 来源
    《Meat Science》 |2012年第4期|p.908-916|共9页
  • 作者单位

    School of Veterinary Science, University of Bristol, Longford, Bristol BS40 5DU, UK;

    School of Veterinary Science, University of Bristol, Longford, Bristol BS40 5DU, UK;

    School of Veterinary Science, University of Bristol, Longford, Bristol BS40 5DU, UK;

    ASRC, Harper Adams University College, Edgmond, Newport, Shropshire TF10 8NB, UK;

    ASRC, Harper Adams University College, Edgmond, Newport, Shropshire TF10 8NB, UK;

    School of Veterinary Science, University of Bristol, Longford, Bristol BS40 5DU, UK;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    vitamin E; muscle; muscle colour; lipid oxidation; fatty acid composition; lamb;

    机译:维生素E;肌肉;肌肉颜色脂质氧化;脂肪酸组成;羊肉;

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